.item{
    width: 400px;
    height: 200px;
    flex-shrink:0;
}
.orange{
    background-color: orange;
}
.yellow{
    background-color: yellow;
}
.red{
    background-color: red;
}
.blue{
    background-color: blue;
}
.box{
    display: flex;
}
.bigBox{
    width: 400px;
    height: 200px;
    overflow: hidden;
}
img{
    width: 100%;
    height: 100%;
}